MacOS10.13.6 can't I update to MacOS 10.14.6?
I have High Sierra on Mac 2010 and tried to update to MacOS 10.14.6 and it won't let me. Says software is not supported but my other Mac 2010 was updated to Mojave. ???
MacBook Pro 15″, macOS 10.13
You don't say what your other Mac model is. To put Mojave on a MacBook Pro needs one introduced in mid 2012 or later.